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74HC259N View Datasheet(PDF) - NXP Semiconductors.

Part Name
Description
Manufacturer
74HC259N
NXP
NXP Semiconductors. NXP
74HC259N Datasheet PDF : 21 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
NXP Semiconductors
74HC259; 74HCT259
8-bit addressable latch
VCC
LE input
GND
VCC
D input
GND
VM
tsu
th
VM
tsu
th
VOH
Qn output
Q=D
VM
VOL
Q=D
001aah125
Measurement points are given in Table 9.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 10. Data input to latch enable input set-up and hold times
VCC
An input
GND
VCC
LE input
GND
VM ADDRESS STABLE
tsu
th
VM
001aah126
Measurement points are given in Table 9.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 11. Address input to latch enable input set-up and hold times
Table 9. Measurement points
Type
Input
74HC259
74HCT259
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
VX
0.1VCC
0.1VCC
VY
0.9VCC
0.9VCC
74HC_HCT259_4
Product data sheet
Rev. 04 — 25 February 2009
© NXP B.V. 2009. All rights reserved.
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